Ch 17 Flashcards
Egg cell
The reproductive cell from the female that joins with a sperm cell to make new life.
Fertilization
The joining together of a male sperm and female egg.
Sperm cell
The cell from the male that enters the egg during fertilization
Uterus
Pear shaped organ inside a females body where the embryo is protected of nurtured.
Embryo
The developing organism from fertilization to about the eighth week of its devlopment.
Fetus
The developing origin isma from the end of the eighth week to birth.
Placenta
Thick rich tissue that lines the walls of the uterus during pregnancy and that nourishes the fetus.
Umbilical cord
A tube that connects the mothers placenta to the fetus.
Cervix
The entry to the uterus dilates.
Heredity
The passing of traits from parents to their children
Chromosomes
Threadlike structures found within the nucleas of the cell that carry the codes for inherited traits.
Genes
The basic unit of heredity
Genetic disorder
A disorder caused partly by or completely by a defect in genes
Prenatal care
Step taken to provide for the health of a pregnant female and her baby.
Birth defects
Abnormalities present at birth that cause physical or mental disability or death
